public void SetInnerBox(CssBox innerBox)
{
if (this.innerBox != null)
{
return;
}
this.innerBox = innerBox;
this.scrollView = new CssScrollWrapper(innerBox);
//scroll barwidth = 10;
bool needHScrollBar = false;
bool needVScrollBar = false;
int originalBoxW = (int)innerBox.VisualWidth;
int originalBoxH = (int)innerBox.VisualHeight;
int newW = originalBoxW;
int newH = originalBoxH;
const int scBarWidth = 10;
if (innerBox.InnerContentHeight > innerBox.ExpectedHeight)
{
needVScrollBar = true;
newW -= scBarWidth;
}
if (innerBox.InnerContentWidth > innerBox.ExpectedWidth)
{
needHScrollBar = true;
newH -= scBarWidth;
}
innerBox.SetVisualSize(newW, newH);
innerBox.SetExpectedSize(newW, newH);
this.AppendToAbsoluteLayer(innerBox);
//check if need vertical scroll and/or horizontal scroll
//vertical scrollbar
if (needVScrollBar)
{
this.vscbar = new ScrollBar(scBarWidth, needHScrollBar ? newH : originalBoxH);
vscbar.ScrollBarType = ScrollBarType.Vertical;
vscbar.MinValue = 0;
vscbar.MaxValue = innerBox.VisualHeight;
vscbar.SmallChange = 20;
//add relation between viewpanel and scroll bar
vscRelation = new ScrollingRelation(vscbar, scrollView);
//----------------------
var scBarWrapCssBox = LayoutFarm.Composers.CustomCssBoxGenerator.CreateWrapper(
this.vscbar,
this.vscbar.GetPrimaryRenderElement((RootGraphic)this.RootGfx),
CssBox.UnsafeGetBoxSpec(this), false);
scBarWrapCssBox.SetLocation(newW, 0);
this.AppendToAbsoluteLayer(scBarWrapCssBox);
}
if (needHScrollBar)
{
this.hscbar = new ScrollBar(needVScrollBar ? newW : originalBoxW, scBarWidth);
hscbar.ScrollBarType = ScrollBarType.Horizontal;
hscbar.MinValue = 0;
hscbar.MaxValue = innerBox.VisualHeight;
hscbar.SmallChange = 20;
//add relation between viewpanel and scroll bar
hscRelation = new ScrollingRelation(hscbar, scrollView);
//----------------------
var renderE = this.hscbar.GetPrimaryRenderElement((RootGraphic)this.RootGfx);
var scBarWrapCssBox = LayoutFarm.Composers.CustomCssBoxGenerator.CreateWrapper(
this.hscbar,
this.hscbar.GetPrimaryRenderElement((RootGraphic)this.RootGfx),
CssBox.UnsafeGetBoxSpec(this), false);
scBarWrapCssBox.SetLocation(0, newH);
this.AppendToAbsoluteLayer(scBarWrapCssBox);
}
}
public ScrollBarButton(int w, int h, ScrollBar owner)
: base(w, h)
{
this.OwnerScrollBar = owner;
}
public ScrollingRelation(ScrollBar scBar, IScrollable scrollableSurface)
{
this.scBar = scBar;
this.scrollableSurface = scrollableSurface;
switch (scBar.ScrollBarType)
{
case ScrollBarType.Vertical:
{
SetupVerticalScrollRelation();
}
break;
case ScrollBarType.Horizontal:
{
SetupHorizontalScrollRelation();
}
break;
default:
throw new NotSupportedException();
}
}
public ScrollBarButton(int w, int h, ScrollBar owner)
: base(w, h)
{
this.OwnerScrollBar = owner;
}
